初中英语语法中的一般现在时ppt课件.pptx
初中英语语法中的一般现在时,一般现在时是英语中应用最广泛的时态之一，是初中英语语法重点。,它表示 1)经常性、习惯性的动作或存在的状态。e.g.,I go to school on foot.,He is very busy now.,2)表示主语的特征、性格、能力、爱好等。e.g.He can swim.I work hard.I like watching TV.,3)表示客观真理 e.g.There are seven days in a week.The moon moves round the earth.,其时间状语为often、usually、always、sometimes等频率副词，on Saturdays、in the morning(afternoon,evening)、every day 等。,1)表示动作，一般人称作主语的，变否定句须在动词前加助动词dont;变一般疑问句须在句首加助动词do。,2)三单人称做主语的，变否定句须在动词前加助动词doesnt;变一般疑问句须在句首加助动词does。,They dont have lunch at 12:00.,Do they have lunch at 12:00?,e.g.They have lunch at 12:00.,e.g.Jenny speaks English very well.,Jenny doesnt speak English very well.,Does Jenny speak English very well?,含有be动词的要在be上做变化.,Danny is a good student.,Danny isnt a good student.,Is Danny a good student?,学生常见错误如下：,一、be动词与行为动词同时出现在句子中,三、在句式变换时易出错,四、对do的理解易出错,五、对主语的数判断有误,二、单三人称形式易出错,一、be动词与行为动词同时出现在句子中,(一)、单选1 Jenny _ in an office.Her parents _in a hospital.A work;works B works;work C work;are working D is working;work2 One of the boys_ a black hat.A have B there is C there are D has3 We will go shopping if it_ tomorrow.A dont rain Bdidnt rain Cdoesnt rain Disnt rain4 He said the sun _in the east and _in the west.A rose;set B rises;sets C rises,set D rise;sets5 Wang Mei _ music and often _ to music.A like;listen B likes;listens C like;are listening D liking;listen6 Jenny_ English every evening.A has study B studies C study D studied,B,D,C,B,B,B,(二)、填空1 I can take Li Ming there when he _(come)to visit.2 _your sister_(know)English?3Her home_ _ _(远离)her school.4The pot(not look)like yours very much.5 Where _you _(have)lunch every day?6 Who _(想要)to go swimming?7 _she_(do)the housework every day?8 Jenny and Danny usually_(play)games in the afternoon.,comes,Does,know,is away from,doesnt look,do,have,wants,Does,do,play,1、He plaies(play)football very well.,以辅音字母加y结尾的动词变单三人称形式才能把y换成i再加es;,与名词变复数不同，变单三人称形式以o结尾的词要加es.,2、Danny gos(go)to school at 7:10.,二、单三人称形式易出错,goes,plays,一般现在时第三人称单数的构成,规则变化一般情况下直接+s work-works ask-asks see-sees以s,x,ch,sh,o 结尾+es watch-watches go-goes do-does wash-washes以辅音字母+y结尾，变y为i加es try-tries study-studies fly-flies不规则变化 have-has,给出下列单词的第三人称单数形式 play go hurry teach buy see wash walk miss watch come say,三、在句式变换时易出错,Does Jenny has(has)a good friend?,Brian doesnt lives(not live)in China.,单三人称做主语的一般现在时做句式变化时，可记住如下口诀：“见助动，用原形”。此口诀也可推广用于一般过去时态中。e.g.He didnt go home yesterday.,have,live,四、对do的理解易出错,We dont(not do)our homework in the afternoon.,do是一个比较难理解的词，它有三个含义:a)是所有行为动词的总称;b)是助动词，无实义;c)是一个具体的行为动词“做，干”。此句中给出的do指“做，干”，not指把此句变为否定句，故须在do前加助动词dont。,dont do,五、对主语的数判断有误,Li Ming with me are(be)in Beijing.,表面一看是“我和李明两个人在北京”，但with在此做伴随状语，不能做主语，故用is.,is,Li Ming with me are in Beijing.,and,用括号中所给词的适当形式填空，,1The buses _(need)a lot of oil.2Each of us _(have)strong points and weak points.3My daughter_(watch)TV every day.Sometimes she _ _(see)a film on Sunday.4Li Wei_(have)a daughter.She _ in a nursery.5Our family _(be)a happy one.6Her mother _(teach)English at a middle school.7Jack often _(listen)to the radio.,将下列句子变成否定式和一般疑问句,1Her name is Mei Ling.2We go to evening school at night.3My brother works in a radio factory.4You have a red pencil.5She has lunch at home.6We have a meeting once a week.,单项选择,1.The Browns _ a nice car and Browns brother _ a nice jeep.A.have have B.has has C.have has D.has have2.If their house _ not like ours,what_ it look like?A.is is B.is does C.does does D.does is3.-_ you think he will come?-If it _ tomorrow he will not come.A.Do rains B.Are rains C.Do will rain D.Are will rain4.The little child _ not even know that the moon _ around the earth.A.do move B.do moves C.does moves D.did moved,
